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Lavry DA2002 Operation Manual Download Page 14

DA2002 

 

Specifications

 

12 

 

 

Part III: Specifications

 

 

 

Noise

    

 

 

 

-110dBFS rms, -130dBFS peak spurious response 

 

 

 

Distortion

               

1kHz tone at -1dBFS: .0009%FS peak harmonic amplitude 

  

 

 

 

 

1kHz tone at  -60dBFS: .00009%FS peak harmonic amplitude  

 

 

 

 

 

10kHz tone at   -1dBFS:   .0009%FS peak harmonic amplitude  

 

 

 

 

 

10kHz tone at -60dBFS:   .00009%FS peak harmonic amplitude  

 

Sample rate

   

 

 

96kHx, 88.1kHz, 48kHz, 44.1kHz at +/- 150ppm lock 

range 
                        

 

 

40-50kHz wide lock mode (varispeed) 

 

Crystal lock™ tracking 

 

1ppm / 15 seconds 

 

Channel separation 

  

 

-100dBFs at 1KHz 

 

Flatness response

    

 

+/- .05dB (10Hz -20KHz) 

 

Phase linearity

  

 

 

2 degrees (10Hz - 20KHz) 

 

Digital inputs

  

 

 

Two AES/EBU, 110 Ohm, transformer isolated  

                                                 

One Consumer, 75 Ohm, transformer isolated 

 

Analog outputs

 

 

 

AES/EBU balanced 4.2V R.M.S. into 600 ohms 

 

 

 

 

 

 

AES/EBU balanced 4.5V R.M.S. into 100Kohms 

                                                  

AES/EBU unbalanced 2V R.M.S into 600 ohms  

 

 

 

 

 

AES/EBU unbalanced 2.2V R.M.S into 100Kohms   

 

   

                                       

 

Consumer outputs 2V R.M.S. into 100k ohms  

 

 

 

 

 

 

       

 

Warm-up and initial calibration 

10 minutes maximum, 3 minutes typical 

 

Input Voltage  

  

 

115V 60Hz or 220V 50Hz, 20 Watts                            

Summary of Contents for DA2002

Page 1: ...Model DA2002 High Resolution Digital to Analog Converter Operations Manual ...

Page 2: ...Lavry Engineering Inc P O Box 4602 Rolling Bay WA 98601 360 598 9757 http www lavryengineering com E Mail techsupport lavryengineering com Revision 1 7C December 7 2011 ...

Page 3: ...ormance and pure enjoyment of the artistic experience The no compromise approach of designer Dan Lavry to the architecture of the DA2002 resulted in a unique design with unparalleled accuracy As a classically trained musician he brings more than decades of engineering experience to his designs a lifetime of playing and listening to acoustic performance has honed his ability to discriminate subtle ...

Page 4: ...omatic self calibration A large number of extra codes enable the addition of digital DC offset to the signal path without signal clipping The DC offset provides superior low level detail by keeping low level signals away from the most significant bit transitions A quad switch deglitcher circuit removes the unwanted transition glitch energy In both PLL Mode and CrystalLock Mode the DA2002 eliminate...

Page 5: ...nal Connection 5 Analog Outputs 6 Analog Output Level 6 Turn On Sequence 7 Polarity Inversion 7 PLL Mode and CrystalLock Mode 8 Power and Fusing 8 Maintenance 8 Part II Theory of Operation Oven control 9 Calibration 9 Timing and Deglitcher 10 Jitter Removal 11 Output Filter and Drivers 11 Part III Specifications 12 Limited Warranty 13 ...

Page 6: ...DA2002 Table of Contents 4 ...

Page 7: ...CT between Search Mode and Manual Mode The mode selected is retained when power is removed In Search Mode each time the INPUT SELECT button is pressed the DA2002 will scan the inputs for the next input with a valid signal present It will skip the inactive input connectors where no signal is present The default setting is Search Mode enabled In Manual Mode each press of the INPUT SELECT button move...

Page 8: ...d mode position the jumpers are set to 90 degrees with respect to the front panel Pin 1 of the XLR connectors is connected to ground potential for proper cable shield connection The LEFT OUTPUT and RIGHT OUTPUT IEC signals are always unbalanced and are not affected by J8 and J10 jumper settings Analog Output Levels The analog output level at the IEC connectors for a full scale digital input signal...

Page 9: ...tive the unit steps through the input ports continuously as indicated by the input select lamps if in Search Mode Most DAC s contains relays for the purpose of muting the output during turn on allowing the DAC to settle to proper operating conditions The DA2002 contains no relays in order to avoid signal degradation associated with relay contacts The unit minimizes turn on spikes by incorporating ...

Page 10: ...e through a small window in the hinged cover located next to the AC power switch and input connector To change or check the fuses or change the operating voltage carefully open the cover by lifting the right edge and pull the red fuse holder straight out of the power input module The voltage is set by turning the red fuse holder so the desired operating voltage is visible when the fuse holder s co...

Page 11: ...mparison against a reference level tells the processor the required adjustments The voltage difference between any given network node and the reference is greatly amplified and then fed to a strobing comparator see multiplexers for calibration and error amplifier and comparator gain blocks in the simplified diagram The processor strobes the comparator and reads its output The strobing is repeated ...

Page 12: ...l value The deglitcher circuit is in off state about half a sample time and on for the rest of the time The on time is the critical time and no digital activity takes place anywhere near the analog circuits The settled signals are fed to the output filter with minimum disturbance The deglitcher off time settling requires the circuit to block as much of the transitions from feeding forwards to the ...

Page 13: ...hanged by tiny amounts 1ppm and not very often 15 seconds or more in a manner allowing it to track only very long term average drift Using such an approach with ordinary PLL will cause loss of lock because the slight variations in incoming data rate cause loss of correspondence between the input and the too steady of a clock circuit The DA2002 CrystalLock approach stores enough data in a dedicated...

Page 14: ...k mode varispeed Crystal lock tracking 1ppm 15 seconds Channel separation 100dBFs at 1KHz Flatness response 05dB 10Hz 20KHz Phase linearity 2 degrees 10Hz 20KHz Digital inputs Two AES EBU 110 Ohm transformer isolated One Consumer 75 Ohm transformer isolated Analog outputs AES EBU balanced 4 2V R M S into 600 ohms AES EBU balanced 4 5V R M S into 100Kohms AES EBU unbalanced 2V R M S into 600 ohms A...

Page 15: ...diction LIMITS AND EXCLUSIONS LAVRY ENGINEERING DOES NOT BY VIRTUE OF THIS AGREEMENT OR BY ANY COURSE OF PERFORMANCE COURSE OF DEALING OR USAGE OF TRADE MAKE ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE TITLE OR NONINFRINGEMENT AND ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED LAVRY ENGINEERING EXPRESSLY...

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